Enable warnings by default

[giampaolo]

Enable warnings by default

[giampaolo]

For the record, at the moment I'm using this as a workaround in my own unit tests:

import warnings
import unittesting

class SublimeTestCase(unittesting.DeferrableTestCase):
    @classmethod
    def setUpClass(cls):
        super().setUpClass()
        warnings.simplefilter("error")  # for this process
        os.environ["PYTHONWARNINGS"] = "default"  # also for subprocesses

    @classmethod
    def tearDownClass(cls):
        warnings.resetwarnings()
        del os.environ["PYTHONWARNINGS"]
        super().tearDownClass()

[giampaolo]

OK, this was easier than anticipated. Here's a PR (my second in this repo =)) which adds a new "warnings" settings:
#272

[deathaxe]

Fixed by #272